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diff --git a/plugins/arm/v7/opdefs/A8843_dmb.d b/plugins/arm/v7/opdefs/A8843_dmb.d
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@@ -0,0 +1,73 @@
+
+/* Chrysalide - Outil d'analyse de fichiers binaires
+ * ##FILE## - traduction d'instructions ARMv7
+ *
+ * Copyright (C) 2017 Cyrille Bagard
+ *
+ *  This file is part of Chrysalide.
+ *
+ *  Chrysalide is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  Chrysalide is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with Chrysalide.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+
+@title DMB
+
+@id 42
+
+@desc {
+
+	Data Memory Barrier is a memory barrier that ensures the ordering of observations of memory accesses, see Data Memory Barrier (DMB) on page A3-151.
+
+}
+
+@encoding (T1) {
+
+	@word 1 1 1 1 0 0 1 1 1 0 1 1 1 1 1 1 1 0 0 0 1 1 1 1 0 1 0 1 option(4)
+
+	@syntax {
+
+		@subid 123
+
+		@conv {
+
+			direct_option = UInt(option)
+
+		}
+
+		@asm dmb ?direct_option
+
+	}
+
+}
+
+@encoding (A1) {
+
+	@word 1 1 1 1 0 1 0 1 0 1 1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 1 0 1 option(4)
+
+	@syntax {
+
+		@subid 124
+
+		@conv {
+
+			direct_option = UInt(option)
+
+		}
+
+		@asm dmb ?direct_option
+
+	}
+
+}
+